Hey atky60,
Welcome back to the community and thanks for taking the time to post.
I’m sorry to hear of the issues that you’re having with your connection and hub 3. I have looked into this and can see some issues with your hub that would mean it would need replacing.
I can arrange the replacement from here but would need to confirm a few details via a private message, that I will drop over in a moment. Please look out for the private message and we can get started.
Kind Regards,
Steven_L